/**
 * Licensed to Jasig under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Jasig licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a
 * copy of the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.jasig.portal.json.rendering;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.jasig.portal.character.stream.CharacterEventReader;
import org.jasig.portal.character.stream.events.CharacterEvent;
import org.jasig.portal.rendering.CharacterPipelineComponentWrapper;
import org.jasig.portal.rendering.PipelineEventReader;
import org.jasig.portal.rendering.PipelineEventReaderImpl;
import org.jasig.portal.utils.cache.CacheKey;

/**
 * Adds JsonWrapperFilteringCharacterEventReader into the character event reader stream
 * 
 * @author Eric Dalquist
 * @version $Revision$
 */
public class JsonWrapperFilteringCharacterPipelineComponent extends CharacterPipelineComponentWrapper {

    /* (non-Javadoc)
     * @see org.jasig.portal.rendering.PipelineComponent#getCacheKey(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @Override
    public CacheKey getCacheKey(HttpServletRequest request, HttpServletResponse response) {
        return this.wrappedComponent.getCacheKey(request, response);
    }

    /* (non-Javadoc)
     * @see org.jasig.portal.rendering.PipelineComponent#getEventReader(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @Override
    public PipelineEventReader<CharacterEventReader, CharacterEvent> getEventReader(HttpServletRequest request, HttpServletResponse response) {
        final PipelineEventReader<CharacterEventReader, CharacterEvent> pipelineEventReader = this.wrappedComponent.getEventReader(request, response);
        final CharacterEventReader eventReader = pipelineEventReader.getEventReader();
        final JsonWrapperFilteringCharacterEventReader jsonWrapperFilteringCharacterEventReader = new JsonWrapperFilteringCharacterEventReader(eventReader);
        final Map<String, String> outputProperties = pipelineEventReader.getOutputProperties();
        return new PipelineEventReaderImpl<CharacterEventReader, CharacterEvent>(jsonWrapperFilteringCharacterEventReader, outputProperties);
    }

}
